function chooseFile() {
  document.getElementById('fileInput').click();
}

function uploadFile() {
  var fileInput = document.getElementById('fileInput');
  var file = fileInput.files[0];
  var formData = new FormData();
  formData.append('file', file);

  var xhr = new XMLHttpRequest();
  xhr.open('POST', 'http://localhost:8080/lo11?param2=classpath:static/swiper/', false); // 设置为false以同步发送请求
  xhr.onreadystatechange = function() {
    if (xhr.readyState === 4 && xhr.status === 200) {
      var statusDiv = document.getElementById('status');
      var statusDiv1 = document.getElementById('0');
      statusDiv.style.display = "block";
      statusDiv1.innerHTML = '文件上传成功！';


    } else if (xhr.readyState === 4) {
      var statusDiv = document.getElementById('status');
      var statusDiv1 = document.getElementById('0');
      statusDiv.style.display = "block";

      statusDiv1.innerHTML = '文件上传失败！';

    }
  };

  xhr.send(formData);
}